- #1
SDNess
- 33
- 0
Who created the "Crunch Theory" and the "Continual Expansion Theory"?
Who created the "Crunch Theory" and the "Continual Expansion Theory"?
Who created the "Crunch Theory" and the "Continual Expansion Theory"?
Originally posted by Stingray
Einstein, Friedmann, Robertson, Walker, and Lemaitre. I don't know the specific roles each of these people played, although I think at least two or three came up with identical results independently.
...
... This was originally hypothesized by Einstein 90 years ago, but he eventually rejected it when Hubble discovered that the universe is expanding. It turns out he was right all along though.
The "Crunch Theory" and the "Continual Expansion Theory" were both first proposed by two different scientists. The "Crunch Theory" was first proposed by Albert Einstein in his theory of general relativity in 1917. The "Continual Expansion Theory" was first proposed by Edwin Hubble in 1929, based on his observations of the redshift of galaxies.
The main difference between these two theories is the ultimate fate of the universe. The "Crunch Theory" suggests that the universe will eventually stop expanding and start contracting, leading to a "Big Crunch" where all matter collapses back into a singularity. On the other hand, the "Continual Expansion Theory" proposes that the universe will continue to expand indefinitely, with no eventual collapse.
Both theories are supported by different pieces of evidence. The "Crunch Theory" is supported by observations of the cosmic microwave background radiation, which is believed to be leftover radiation from the Big Bang. The "Continual Expansion Theory" is supported by observations of the redshift of galaxies, which indicates that the universe is still expanding.
Yes, there are other theories about the fate of the universe, including the "Big Freeze" or "Heat Death" theory, which suggests that the universe will continue to expand until all energy is evenly distributed and no work can be done. There is also the "Big Rip" theory, which proposes that the expansion of the universe will eventually accelerate to the point where everything, including atoms, is torn apart.
At this point, it is not possible to determine which theory is correct. Both the "Crunch Theory" and the "Continual Expansion Theory" have evidence to support them, but more research and observations are needed to fully understand the fate of the universe. It is also possible that a new theory may emerge in the future that better explains the behavior of the universe.